package adv3;

public class Wrap5 {

	public static void main(String[] args) {
		// byte
		byte b = 127;// -128 127
		System.out.println(b);
		System.out.println("max:" + Byte.MAX_VALUE);
		b++;
		System.out.println("b=" + b);
		Long l = 10000000000000L;
		float f = 2222.33F;

		// parseXxxx :原始类型
		// valueOf:：包装类型
		Long l2 = Long.valueOf("1234");
		String ss = Long.toString(l2);
		System.out.println(ss);
	}

}
